title: Polydopamine gradients by oxygen diffusion controlled autoxidation.
abstract: We report a simple and facile protocol to fabricate mussel-inspired polydopamine (PDA) gradients on different surfaces. An oxygen diffusion phenomenon was used for dopamine autoxidation to form thickness gradients of PDA on different substrates. These PDA gradients showed gradual changes in thickness, roughness, wettability and light transmittance.
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China. xuzk@zju.edu.cn.
authors.forename: Hao-Cheng
authors.initials: HC
authors.lastname: Yang
authors.forename: Qing-Yun
authors.initials: QY
authors.lastname: Wu
authors.forename: Ling-Shu
authors.initials: LS
authors.lastname: Wan
authors.forename: Zhi-Kang
authors.initials: ZK
authors.lastname: Xu
mesh_terms: D004058:Diffusion; D007211:Indoles / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D013473:Sunscreening Agents / Q000737:chemistry; D014466:Ultraviolet Rays
chemical_list: D007211:Indoles; D011108:Polymers; D011137:Polystyrenes; D013473:Sunscreening Agents; C568283:polydopamine; D010100:Oxygen